A Homeland Security Department watchdog says that immigration and border enforcement agencies have been running protection details for executives without the legal authority to do so.

The DHS Office of the Inspector General issued a report Sept. 14, which was redacted and made public this week, making the case that Customs and Border Protection and Immigrations and Customs Enforcement lacked the statutory authority to provide security details to agency leaders. But CBP has provided protection for its commissioner, and ICE for its director, since as early as 2014, without articulating specific or credible threats that made such efforts necessary.

According to CBP, the protection detail for its commissioner costs $700,000 per year in personnel costs, and the agency has incurred additional costs to acquire multiple SUVs to support the program. The DHS inspector general said those figures underestimate the price tag.